Shares in Central Asia Metals have almost doubled to 175p since Midas tipped the company in July 2012.

The Kazakhstan-based copper producer last month unveiled profits up 86 per cent at $28million (£16.6million) for 2013 (copper trading is always conducted in dollars), while the dividend rose 28 per cent to 9p.

Last year was the first full year of production and the firm exceeded expectations, delivering 10,500 tons to the market. This year, the target is 11,000 tons and observers believe the firm may well exceed forecasts again.

Geopolitical risks: But the Kazakhstan-based firm is small enough to be below the radar of political interference

So should investors enjoy the ride or be concerned about geopolitical risk, given Kazakhstan’s proximity to Russia and the disastrous performance of scandal-hit Eurasian Natural Resources?

The firm’s supporters say Central Asia is well run and small enough to be below the radar of political interference. The firm is also generous with its dividends and the shares yield 5 per cent.

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Midas verdict: Investing in far-flung companies always carries extra risk but Central Asia has delivered good results so far. Investors should sell half their stock to bank some profit but keep the rest.